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What makes gadgets "green"? Electronic companies are increasingly designing products to use less energy or off-grid sources. More equipment also features fewer toxic ingredients, less wasteful packaging, and recycled or easily recyclable materials. The Energy Star label notes more-efficient electronics, while EPEAT ratings list computers and monitors with green credentials. These online gifts are another option. For more tips, CNET's guide to TV-power consumption and guide to cell phone radiation can offer more shopping guidance.

Editors' top pick

The bottom line: The Medis 24/7 fuel cell Power Pack is a great back-up gadget electricity supply for emergencies and camping trips.

The bottom line: Well designed and high functioning, the Solio Universal solar charger kit is great for power in a pinch on a sunny day.

The bottom line: The Eco Media Player may be overkill for recreational camping, but it's a perfect boredom-buster for globe trekkers, extreme outdoorsman, or MacGyver.

SimpleTech (Re)Drive

The bottom line: Made from bamboo and recycled aluminum, the SimpleTech (Re)Drive is the most environmentally friendly external hard drive we've tested. It works well as a USB 2.0-only storage device and offers a unique ownership experience.

Price: $67.99 - $159.99

Shuttle KPC K-4500

The bottom line: Shuttle's KPC K-4500 has appeal as a prebuilt Linux PC for a tech-savvy owner to play around with or as a more or less accessible, basic computer to bestow upon a loved one (for whom you're willing to provide tech support). If you're aware of the potential pitfalls we recommend it, not least because it's so affordable.

PLX Kiwi

The bottom line: While it is a good training tool to help motorists to drive more efficiently, the PLX Kiwi will not miraculously boost your fuel economy.

The bottom line: If you're considering all of the computers in the $700 to $1,000 price range, the Dell Studio Hybrid is not very compelling. However, if you limit yourself to the very specific niche of small PCs, you'll appreciate this system's clever design and its relatively powerful hardware.

Price: $499.00

Philips 42PFL5603D

The bottom line: Although it has its share of picture-quality problems, the Eco-friendliness of Philips' 42PFL5603D flat-panel LCD will win the day for consumption-conscious shoppers.

The bottom line: Apple's redesigned 13-inch MacBook is essentially a shrunken version of the more expensive 15-inch Pro line. With its new aluminum body, new trackpad, and Nvidia graphics, it's an even more attractive choice for mainstream laptop buyers than was the plastic model it replaces.

Price: $1,229.00 - $1,299.99

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